Specifications Hign-concerned Chemical:None Model Number:SCHWALBE PRO ONE Size:700X25C/28C/30C Use:Road Bicycles Type:Tire Type:Clincher Tires SCHWALBE PRO ONE 700c Road Bike Tires 70025C /70028C /70030CBlack Yellow Edge Competition Bicycle Foldable Clincher Tires Features: Extremely low rolling resistance Excellent grip for fast cornering RaceGuard protection against punctures The product weight specified is an approximate weight based on the manufacturer's specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%. About this item HIGH-END TUBE TYPE: Combines speed and control at the highest level. Pro One is best road bike tire Schwalbe has ever developed. The Tube Type tire is specially made for use with a tube and cannot be used tubeless. All Pro One road bike tires are clearly marked with additional labels "TLE for Tubeless Easy or "TUBE ONLY. The Schwalbe Pro One Road Tyres combine three of Schwalbe's unique technologies; to create a tyre that outperforms its predecessors and competitors by a significant margin. The first of these technologies is the Souplesse Carcass Construction. This development aims to supply the 'feel' of a tubular tyre, but in a clincher. Through their research, Schwalbe found that racing cyclists not only want a fast tyre, but a tyre that offers maximum suppleness or 'souplesse'; a tyre that responds to an individual riding style and offers feedback at all times. What they created was just that: Pro One tyres allow you to feel the road beneath you like no other clincher I have used; connecting you with the terrain and offering increased confidence and control. To ensure maximum protection from punctures, Schwalbe built the Pro One tyres with their V-Guard Puncture Protection Belt. This liner is composed of polymer fibres that originate from bulletproof vest development; they are extremely light and supple but offer excellent protection against cuts and punctures. V-Guard Protection covers the whole of the tread of the tyre, so there are no weak spots to let obtrusions in. To create the best grip and traction, Schwalbe Pro One Tyres use the brand's Addix Race Compound. This multi-density rubber and silica compound allows Schwalbe to tailor the compound's properties depending on the area of the tyre in which it is used; the sidewall and tyre shoulder compounds are tailored towards grip, while the central tread is built more towards durability and speed. Another clever example of developing a product to the exact demands of the end user. Summing together the benefits of the above three technologies, it is clear to see how and why the Schwalbe Pro One is an exceptional example of a road cycling tyre: it rolls fast, it feels supple, it rarely punctures, and it grips the road like no other. This is a clincher tyre that defies the standards previously seen in performance road bike tyres.